When the audio isn't in time with the video yous're watching it might take a while before you notice. But once you do, it's impossible to ignore and you'll want to find a solution straight away.

Here'south the bad news: in that location are lots of things that can cause lip-sync issues, just hopefully the tips here volition isolate the problem and – hopefully – set it for free.

Video sync problems on your Television receiver

Streaming

If you lot're streaming video from Netflix or another service and you haven't had bug with out-of-sync sound earlier, then it's likely something has gone amiss with the stream. Simply stop the video and, if necessary, leave the player yous're using. You can also unplug your set-peak box for 30 seconds to reset information technology.

Restart information technology and resume the video and you'll probably notice the problem is stock-still.

I just got a new Tv set

If you've merely bought a new Boob tube, it could be input lag that's the problem. This terms merely ways that the Idiot box takes a bit of time to process each frame of video to meliorate its quality earlier information technology'southward displayed, and then you hear the sound before the video.

A slight filibuster may not be a problem for speaking, just for sound furnishings such as gunshots, it tin exist very noticeable.

To test this, try to switch to the TV's Game Fashion. This should disable the paradigm processing and remove any filibuster and put video dorsum in sync with the audio.

Set-top box

If you find the problem when watching video from any of your set up-top boxes, it's fairly articulate that it'south the Boob tube at mistake.

However, if it's only an outcome when you use your Blu-ray or DVD player, or a Sky or Freeview box, and then yous're already close to isolating the trouble.

Information technology may the box itself, merely if y'all've routed the sound through a soundbar, AV receiver or some other speaker arrangement, it could be that causing the mismatch.

Virtually AV receivers accept a setting where you tin change the lip-sync delay then it matches the video perfectly. Some sound bars also have the pick.

Buying an AV receiver tin can also be a solution to video sync problems thanks to the adjustment on offer, but that's not ideal if you desire a free set up.

How do I use lip-sync settings to go the video in sync?

If it's obvious that the audio is playing ahead of the video, then you may be able to just guess how much filibuster to introduce. Or just do it by trial and error using whatever settings are available on your Boob tube, AV receiver or other speaker organization or set-top box.

The more precise way is to play an sound-video sync video such every bit this useful one on YouTube.

Well-nigh smart TVs can play YouTube videos, so it shouldn't be difficult to do this. The video plays a 'chirp' when the rotating bar is exactly at 0ms.

How to fix video sync problems

But expect and run into where the bar is pointing when the audio plays: this tells you how much of a delay at that place is.

And if it's your sound organisation causing the trouble (maybe because you're using a Bluetooth speaker) it will also tell yous how late the sound is arriving.

What if I'chiliad using a laptop or PC?

You tin experience similar video sync issues in Windows. Diagnosing what's causing the problem is a relatively similar process to your TV and AV gear, though.

Try playing the video in some other app, or in another web browser if you're streaming information technology. That should tell you if it'due south the app or browser.

How to fix video sync problems

VLC is one of our favourite complimentary video players, and it offers great control over sound / video sync. When watching a video you tin can press j or k to adjust the sound delay past 50ms on each printing.

If you lot're watching Netflix, it's possible that it's withal using the Silverlight plugin, rather than the HTML5 histrion, and this is known to cause lip-sync problems.

Alternatively, cheque in the Command Panel under Sound and make sure no processing or effects are enabled which could cause a delay in audio.